I do have a few problems though

I cant get my leader board to show up (which i think i can fix on my own)and when i try to set the life loss triggers it wants a value i dont know what to put at.. for example if i wanted the trigger to start with 25 lives (which it does and then i go through the event and conditions but at the actions.....
.......

Unit - a unit enters Leakregion <gen>
........

(Owner of (Killling unit)) Equal to Player 10 (light blue)
........
Set Lives[value] =
Index- 1 how can i make it to where there is no
Index there and its just
- 1? thankx in advance btw: the color coded
Set Lives[index] =
value- 1 is in a window because since i cannot specify a value for
[index] i cant press ok
If you didnt understand my question here is a screen shot of my problem 